608 Ceramic Ball Bearings 8X22X7mm Specifications & Dimensions


Universal 608
Type Ball
Inner/Outer Ring Material Steel, Hybrid balls, ceramic ball
Precision Grade P0,P6,P5
Inner Dimension d(Ø) 8
Outer Dimension D(Ø) 22
Width B (or T)(mm) 7
Retainer Type Punching
Load Direction Radial
Specifications/Environment Standard
Number of Raceway Ring Rows Single Track
Size Standards Metric Series
608 Ball Bearings Dimensions

Model Numbers: 608, 608Z, B608ZZ, 608ZZ, B608DDU, 608LLU, 608H2RS, 608-2RS

Brands Carried: TKW, NSK, NTN, EZO, EASIER

Bearing Sizing: ID 8mm X OD 22mm X W 7mm, 8 mm Ball Bearing

Bearing Seals: Open, Single Shielded, Double Shielded, Rubber Sealed

For more 608 ball bearings and seal options

The 608 ceramic Bearings is a 8 mm Ball Bearing that can be used in many rotary and factory automation applications. The 608 Miniature Ball Bearings is an open style bearing. The 608Z ball bearing is a single row raceway and single shielded. The 608ZZ ball bearing has a single row raceway and it is shielded on each side. The B608DDU, 608LLU, 608H2RS, 608-2RS ball bearing are shielded by two rubber seals on each side. The 608 8 mm Ball Bearing Inner Dimension 8mm X Outer Dimension 22mm X Width 7mm is an open style ball bearing designed for high rotational speeds and high dynamic loads.

Hybrid ceramic angular contact ball bearings, especially silicon nitride ball hybrid ceramic bearings, have the characteristics of low density, high hardness, low friction coefficient, anti-magnetic and electrical insulation, wear resistance, self-lubricating and good rigidity, good acid and alkali resistance, self-lubricating Function, high temperature resistance above 300°C, high wear resistance, high speed greatly reduces rolling, friction and heat generation, long service life is 3 to 5 times that of all-steel bearings, light weight ceramic materials 60% lighter than steel, The elastic mold of the same rigid ceramic material is 50% higher than that of bearing steel.

Hybrid ceramic angular contact ball bearings are the same as ordinary chrome steel angular contact ball bearings, Its inner and outer ring raceways are relatively offset from each other in the direction of the bearing axis. This means that this type of bearing is designed to carry combined loads, that is, radial load plus axial load.

The axial load carrying capacity of angular contact ball bearings increases with the increase of the contact angle. In the radial plane, the angle between the line connecting the contact point of the steel ball and the raceway (that is, the direction in which the combined load is transmitted from one raceway to the other raceway) and the vertical line of the bearing axis.

Angular contact ball bearings can only bear axial load in one direction. This type of bearing usually needs to be adjusted relative to another bearing. Their bearing rings have two shoulders, high and low, and are inseparable.

Hybrid ceramic angular contact ball bearings are particularly suitable for high-speed, high-precision and long-life steel-ceramic hybrid bearings rolling elements (the inner and outer rings are made of metal). Generally, the inner and outer rings are made of bearing steel or stainless steel, and the ceramic balls can be made of ZrO2, Si3N4, or SiC.

Among them, Si3N4 has excellent comprehensive performance and has become the first choice material for steel-ceramic hybrid ceramic bearings. Hybrid ceramic angular contact ball bearings